A-LevelPhysicsDynamicsOct/Nov 2009Paper 1 Q91 Mark

A supermarket trolley, total mass 30 kg, is moving at 3.0 m s⁻¹. A retarding force of 60 N is applied to the trolley for 0.50 s in the opposite direction to the trolley's initial velocity. What is the trolley's new velocity after the application of the force?

Q: What is the correct answer to this A-Level Physics question?

The correct answer is C: 2.0 m s⁻¹.

Q: What topic does this question test?

This question tests Dynamics in A-Level Physics (syllabus code 9702). It is worth 1 mark.

A1.0 m s⁻¹

B1.5 m s⁻¹

C2.0 m s⁻¹

D2.8 m s⁻¹

✓ Correct Answer

The correct answer is C: 2.0 m s⁻¹

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Physics Question

Topic

This multiple-choice question tests Dynamics in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics Oct/Nov 2009 examination, Paper 1 Variant 2.

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